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Finding the Fourth Proportional to 610,480.20, 915,720.30 and 167,248.20

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Solution

The fourth proportional to 610,480.20, 915,720.30 and 167,248.20 is: 250,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,480.20 : 915,720.30 = 167,248.20 : x
  2. Step 2: Convert to fraction form
    610,480.20/915,720.30 = 167,248.20/x
  3. Step 3: Cross multiply
    610,480.20x = 915,720.30 × 167,248.20
  4. Step 4: Simplify right side
    610,480.20x = 153,152,571,878.46
  5. Step 5: Solve for x
    x = 153,152,571,878.46/610,480.20
  6. Step 6: Final answer
    x = 250,872.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.